Invention Grant
US09007281B2 Organic light emitting diode display device capable of compensating a threshold voltage of a driving TFT
有权
能够补偿驱动TFT的阈值电压的有机发光二极管显示装置
- Patent Title: Organic light emitting diode display device capable of compensating a threshold voltage of a driving TFT
- Patent Title (中): 能够补偿驱动TFT的阈值电压的有机发光二极管显示装置
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Application No.: US13666061Application Date: 2012-11-01
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Publication No.: US09007281B2Publication Date: 2015-04-14
- Inventor: Joongsun Yoon , Jihyun Kang
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2011-0115577 20111108
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/32

Abstract:
This embodiments herein relate to an organic light emitting diode display device comprising: a display panel configured to include a plurality of pixels disposed in a matrix form, wherein each of the pixels including: a driving TFT, an organic light emitting diode, a control circuit including first to fourth TFTs, capacitors. The embodiments described herein may improve accuracy of sensing a threshold voltage of the driving TFT even though the organic light emitting diode display device drives high frequency such as 240 Hz because sensing periods are long enough to sense the threshold voltage of the driving TFT. Also, the embodiments described herein may compensate a drop of a high potential voltage due to compensating the current between a drain electrode and a source electrode of the driving TFT by using the high potential voltage dropped.
Public/Granted literature
- US20130113779A1 ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE Public/Granted day:2013-05-09
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